From b369b306448bbec72f29b33ebe2f654589845103 Mon Sep 17 00:00:00 2001
From: gmungoc <g.m.carstairs@dundee.ac.uk>
Date: Thu, 18 Sep 2014 09:31:00 +0100
Subject: [PATCH] JAL-1360 refactored utility method to ColorUtils class

---
 src/jalview/gui/UserDefinedColours.java |   39 +++++++------------------------
 src/jalview/util/ColorUtils.java        |   25 ++++++++++++++++++++
 2 files changed, 34 insertions(+), 30 deletions(-)

diff --git a/src/jalview/gui/UserDefinedColours.java b/src/jalview/gui/UserDefinedColours.java
index fec36e5..1f23338 100755
--- a/src/jalview/gui/UserDefinedColours.java
+++ b/src/jalview/gui/UserDefinedColours.java
@@ -27,6 +27,7 @@ import jalview.jbgui.GUserDefinedColours;
 import jalview.schemes.ColourSchemeI;
 import jalview.schemes.ResidueProperties;
 import jalview.schemes.UserColourScheme;
+import jalview.util.ColorUtils;
 import jalview.util.MessageManager;
 
 import java.awt.Color;
@@ -255,7 +256,7 @@ AlignmentPanel ap;
       {
         button = (JButton) selectedButtons.elementAt(i);
         button.setBackground(newColour);
-        button.setForeground(brighterThan(newColour));
+        button.setForeground(ColorUtils.brighterThan(newColour));
       }
       if (button == lcaseColour)
       {
@@ -263,7 +264,7 @@ AlignmentPanel ap;
         {
           button = (JButton) lowerCaseButtons.elementAt(i);
           button.setBackground(newColour);
-          button.setForeground(brighterThan(button.getBackground()));
+          button.setForeground(ColorUtils.brighterThan(button.getBackground()));
         }
       }
     }
@@ -322,7 +323,7 @@ AlignmentPanel ap;
         JButton button = (JButton) buttonPanel.getComponent(b);
         if (!selectedButtons.contains(button))
         {
-          button.setForeground(brighterThan(button.getBackground()));
+          button.setForeground(ColorUtils.brighterThan(button.getBackground()));
           selectedButtons.add(button);
         }
       }
@@ -332,10 +333,10 @@ AlignmentPanel ap;
       for (int b = 0; b < selectedButtons.size(); b++)
       {
         JButton button = (JButton) selectedButtons.elementAt(b);
-        button.setForeground(darkerThan(button.getBackground()));
+        button.setForeground(ColorUtils.darkerThan(button.getBackground()));
       }
       selectedButtons.clear();
-      pressed.setForeground(brighterThan(pressed.getBackground()));
+      pressed.setForeground(ColorUtils.brighterThan(pressed.getBackground()));
       selectedButtons.addElement(pressed);
 
     }
@@ -343,12 +344,12 @@ AlignmentPanel ap;
     {
       if (selectedButtons.contains(pressed))
       {
-        pressed.setForeground(darkerThan(pressed.getBackground()));
+        pressed.setForeground(ColorUtils.darkerThan(pressed.getBackground()));
         selectedButtons.remove(pressed);
       }
       else
       {
-        pressed.setForeground(brighterThan(pressed.getBackground()));
+        pressed.setForeground(ColorUtils.brighterThan(pressed.getBackground()));
         selectedButtons.addElement(pressed);
       }
     }
@@ -416,35 +417,13 @@ AlignmentPanel ap;
     button.setOpaque(true);	// required for the next line to have effect
     button.setBackground(col);
     button.setText(label);
-    button.setForeground(darkerThan(col));
+    button.setForeground(ColorUtils.darkerThan(col));
     button.setFont(new java.awt.Font("Verdana", Font.BOLD, 10));
 
     return button;
   }
 
   /**
-   * Returns a colour three shades darker. 
-   * 
-   * We use darker text to indicate unselected buttons, lighter text for selected.
-   * @param col
-   * @return
-   */
-  public static Color darkerThan(Color col) {
-	  return col.darker().darker().darker();
-  }
-
-  /**
-   * Returns a colour three shades brighter. 
-   * 
-   * We use darker text to indicate unselected buttons, lighter text for selected.
-   * @param col
-   * @return
-   */
-  public static Color brighterThan(Color col) {
-	  return col.brighter().brighter().brighter();
-  }
-
-  /**
    * DOCUMENT ME!
    * 
    * @param e
diff --git a/src/jalview/util/ColorUtils.java b/src/jalview/util/ColorUtils.java
index f108da1..0d726a2 100644
--- a/src/jalview/util/ColorUtils.java
+++ b/src/jalview/util/ColorUtils.java
@@ -59,4 +59,29 @@ public class ColorUtils
 
   }
 
+/**
+   * Returns a colour three shades darker. 
+   * 
+   * We use darker text to indicate unselected buttons, lighter text for selected. Note you can't 
+   * guarantee that darkerThan/brighterThan undo each other, as they may result in black/white.
+   * 
+   * @param col
+   * @return
+   */
+  public static Color darkerThan(Color col) {
+	  return col.darker().darker().darker();
+  }
+
+/**
+   * Returns a colour three shades brighter. 
+   * 
+   * We use darker text to indicate unselected buttons, lighter text for selected. Note you can't 
+   * guarantee that darkerThan/brighterThan undo each other, as they may result in black/white.
+   * @param col
+   * @return
+   */
+  public static Color brighterThan(Color col) {
+	  return col.brighter().brighter().brighter();
+  }
+
 }
-- 
1.7.10.2